Alfred Herbert Richardson (1874–1951) was an English policeman. He joined the Birmingham City Police in 1890. He achieved very rapid promotion within this force and in 1901 became chief constable of Newcastle-under-Lyme, Staffordshire. In 1903 he successfully applied for the chief constable's office at Halifax, West Riding of Yorkshire, where he remained until his retirement in 1944. During his time there he achieved many early improvements in policing at Halifax, some of which were later used nationwide. The most notable were the installing of coloured lights as traffic signals at road junctions, the formalisation of procedures for police identity parades, making 'keep left' mandatory for traffic and the installation of police telephones in the town, among others. In later years he was re